Drop-testing machine



April 29, 1924.- 7 1,491,990

J. KINDERVATER DRQP TESTING MACHINE 'Filed June 14, 1923 Patented Apr. 29, 1924.

DROP-TESTING f MACHINE.

Application filed June 14, 1923. Serial No. 645,293.

T aZZ whom it mag concern:

Be it known that I, JULIUS KINDERVATER, of New York, in the county and State of New York, have invented a certain new and useful Improvement in Drop-Testing Machines, of which improvement the following is a specification.

My invention relates to machines for testing material by the impact of a dropped weight, and its object is to provide a machine of such type which shall be of simple and substantial construction, and be specially adapted for testing connecting rods of locomotives, bar links of, structural work,"

or other members having an eye or perforation at each end.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings: Figure 1 is a rear view, in elevation, of a drop-- testing machine embodying my invention; Fig. 2, a side view, in elevation of the same; and, Fig. 3, a horizontal section, on the line a a of Fig. 2.

In the practice of my invention, referring descriptively to the specific embodiment thereof which is herein exemplified, the frame of the machine comprises a substantial bed or base, 1, of forged steel or cast iron or steel, and four standards, 2, of sufficient length to accommodate the longest piece of material on which the machine is designed to operate, which standards are bolted to the base, and connected, at their upper ends, by transverse bars, 2 and lateral hearing blocks, 3, in which V shaped bearing recesses, 3 are formed.

A drop test weight, t, of predetermined weight, which, as shown in Fig; 3, is in the form of a cross, the arms of which fit freely between the standards, 2, and in which a central opening, a is formed, is suspended by cables, 6, which are connected to a hoisting drum, 8, secured upon a shaft, 8, journailed in bearings, 8", on the front pair of standards, 2. The cables, 6, pass around sheaves, 7, on a shaft, 7", journalled in bearings on the blocks, 3, and are connected to turnbuckles, 6, which provide proper facilities for adjustment of length. The turnbuckles are connected, by links, 6", to clevises, 11, which are hooked, at one end, into eye bolts, 4a, fixed in the drop test weight,

'4, and hear, at their opposite ends, on a trip bar, 11, secured, adjustably as to height, to the front pair of standards, 2.

The drop test weight is raised to the upper limitof its traverse, by the rotation of an operating shaft, 10, having crank arms, 10", on its ends, and carrying spur pinions, 10', which engage gears, 9, on the shaft, 8, of the hoisting drum. I

' In the operation of the machine, the membar to be tested, which, in the instance illustrated, is a locomotive siderod, A, is suspended on the blocks, 3, by a trunnion pin,

5, passed through the crank pin eye at one of its ends, and seated in theV shaped hearing recesses, 3 of the blocks. An anvil pin, 5 is fitted in the crank pin eye at the opposite end of the rod,A. The hoisting drum shaft is then released, and the drop test weight, 4, thereby allowed to, fall, being automatically released by the bearing of the clevises 11, on the trip bar 11*, and striking the anvil pin 5. A shock test is thus applied to both the lower and upper sections of the rod, A, by the impact of the drop test weight on the anvil pin, 5.

I claim as my invention and desire to S0 secure by Letters Patent:

1. In a drop testing machine, adapted to test elongated articles having apertures in their ends, the combination of a base; standards, secured thereon and spaced apart for 55 the passage of a drop test weight; recessed bearing blocks, fixed to the tops of the standards; a pin, seated in the recesses of the bearing blocks, for supporting the article to be tested; a drop test weight; hoisting mechanism for raising said weight; a tripping device for releasing said weight; and an anvil pin, adapted to be fitted in an article to be tested, in position to receive the impact of the released drop test weight.

2. In a drop testing machine, adapted to test elongated articles having apertures in their ends, the combination of a base; standards secured thereon; recessed bearing blocks, fixed to the tops of the standards; a pin, seated in the recesses of the bearing blocks, for supporting the article to be tested; a drop test weight, having arms fitting freely between the standards; hoisting mechanism for raising said weight; a trip- 1 ping device for releasing said weight; and

an anvil-pin, adapted to be fitted in the article to be tested, in position to receive the impact of the released drop test weight.

aperture in an article to be tested, andto rest in the recesses "oi the bearing blocks and form a" support for said article; a drop test Weigh-t; hoisting-mechanism 0111 raising said weight; atr-ippingdevice ferreeasin'g aid We gh nd an anvil pi adapted to be fitted'inthe article to be, tests P si i n to re iv he impa t f rel ase d p. te t e ght- 7 a 4.: Ina op testing maehineedap ed to t st ong e ti-.c; erin apertu es in their ends, the combinationof-g a base;-

tende ds secured her eeeesed bea blocks fire t he tops e he st ward a run o p er a apte tee t nd hrqeg an aperture in an article to be tested,- and.

to rest in h eces es of the beeri-ngwbl cks and forrna supportforJ-Said-article; a drop. test weight; hoisting mechanism for raising saidweight; a tripping-device for releasing said .weight from thehoistingmeohanism; means adjustable on theistandards, forjac ards secured thereon;

tuating said tripping device, and an anvil pin, adapted to be fitted in the article to be tested, in position to receive the impact of. .the releasedv drop tesrt eight.-

5 Ina drop testing machine adapted to test elongated articles having apertures in their ends, the combination of a base; standrecessed bearing blocks fined to the tops of the standards; a trunnion pin, adapted to extend through anaperture in an article to be tested, and to rest in the recesses of the bearing blocks and form'a supportfor said article; a drop e t weigh hQi-st ng e h sm for raising a d ight; is s, engaging-Said weight a t ip barson e ed to th tanda and i pesed n th path of t e de i e n n anvil 'p eiedap edetqbefi e in h article to be tested, in position tor receiveithe impa t ofwthe re eae dr 2p we e -iI 1 d Qp-testi ma h ne, a rop test ight i hei rm-Q a cr s, I the arms t hichre adap ed t Pass .betwee e te ar e 1? h machine, .en hevieg a n r epee egihr u h Whi hn arti le t be tes daeee er s di en ey e ts 9M neetiom-to a ihoisting'meehanism.

JULIUsKitTnnRv rEn 

